Home / 42,753.84-64,136.82-13,174.08

Finding the Fourth Proportional to 42,753.84, 64,136.82 and 13,174.08

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Solution

The fourth proportional to 42,753.84, 64,136.82 and 13,174.08 is: 19,762.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,753.84 : 64,136.82 = 13,174.08 : x
  2. Step 2: Convert to fraction form
    42,753.84/64,136.82 = 13,174.08/x
  3. Step 3: Cross multiply
    42,753.84x = 64,136.82 × 13,174.08
  4. Step 4: Simplify right side
    42,753.84x = 844,943,597.63
  5. Step 5: Solve for x
    x = 844,943,597.63/42,753.84
  6. Step 6: Final answer
    x = 19,762.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.